Diamond Publications - Search Results

Search Again...

These results only include publications that have been reviewed and processed by Diamond Light Source. To also view papers that have not yet been processed click here.

You can use the folder icon under Actions to collate papers as required. You can then click on View Folder in the left-hand navigation to review and/or download your folder.

One item found (0 items not approved).

Instruments / Technical Area	Publication Details	Published	Actions
I18-Microfocus Spectroscopy	The mapping and differentiation of biological and environmental elemental signatures in the fossil remains of a 50 million year old bird Victoria Egerton , Roy A. Wogelius , Mark A. Norell , Nicholas Edwards , William Sellers , Uwe Bergmann , Dimosthenis Sokaras , Roberto Alonso-Mori , Konstantin Ignatyev , Arjen Van Veelen , Jennifer Anné , Bart Van Dongen , Fabien Knoll , Phillip Manning Journal Of Analytical Atomic Spectrometry DOI: 10.1039/C4JA00395K Diamond Proposal Number(s): [8597, 9488] Open Access Show Abstract ▼ Abstract: The preservation of fossils reflects the interplay of inorganic and organic chemical processes, which should be clearly differentiated to make interpretations about the biology of extinct organisms. A new coliiformes bird (mouse bird) from the [similar]50 million year old Green River Formation (Wyoming, USA) has here been analysed using synchrotron X-ray fluorescence and environmental scanning electron microscopy with an attached X-ray energy dispersive system (ESEM-EDS). The concentration and distribution of 16 elements (Si, P, S, Cl, K, Ca, Ti, Mg, Fe, Ni, Cu, Zn, As, Br, Ba, Hg) has been mapped for individual points on the sample. S, Cu and Zn map distinctly within visibly preserved feathers and X-ray Absorption Spectroscopy (XAS) shows that S and Cu within the feathers are organically bound in a similar manner to modern feathers. The morphological preservation of the feathers, on both macro- and microscopic scales, is variable throughout the fossil and the differences in the lateral microfacies have resulted in a morphological preservation gradient. This study clearly differentiates endogenous organic remains from those representing exogenous overprinted geochemical precipitates and illustrates the chemical complexity of the overall taphonomic process.	Jan 2015

Instruments / Technical Area

Publication Details

Published

Actions

I18-Microfocus Spectroscopy

The mapping and differentiation of biological and environmental elemental signatures in the fossil remains of a 50 million year old bird